Moeller Swingarm Mechanical Sending Unit

The Moeller Swingarm Mechanical Sending Unit is a mechanical fuel level sender that uses a swingarm float to gather fuel level information, with a direct sight gauge included. Its designed to work with Moellers standard 33240 ohm gauge system, and it can also be used with an optional conversion capsule for electric dash-mounted gauge readings.

Key Features

• Mechanical swingarm sender gathers fuel level information using a float read by a direct sight gauge (included).
• Direct sight gauge included with the sending unit.
• Fuel level readings may fluctuate as fuel sloshes during boating due to the moving float and swingarm mechanism.

Product Compatibility

• Marine fuel tank fuel level indication systems (direct sight and optional electric dash conversion).
• For tank depths matched to the specific sending unit length (see Product Details).

Product Details

• Moeller Swingarm Mechanical Sending Unit
• SKU: 114-03575710
• Tank depth: 17-3/4 in. / 451 mm
• Output calibration: 33240 ohms (industry standard)
• Includes: direct sight gauge (direct site gauge included on mechanical units)
• Conversion capability: supports use with a conversion capsule to convert the standard direct sight gauge reading to an electric dash-mounted gauge (33240 ohms)
• Note: The gauge reading can fluctuate while boating as the fuel level moves (sloshes) around the tank.

Parts Desk Insights

Best Use Case: Choose this mechanical swingarm sender when you want a direct fuel sight gauge on the tank (and/or plan to use the optional conversion approach to display fuel level at a dash).

Common Issues: If the gauge response seems inconsistent, verify the sending unit is matched to the correct tank depth and check for proper mounting/contact at the tank opening. Remember mechanical readings can vary with fuel movement while underway because the float/swingarm responds to changing fuel level.

Related Products & Accessories

• Conversion Capsule Mechanical to Electric – Use the appropriate Moeller conversion capsule to convert direct sight gauge output to an electric dash-mounted gauge (33240 ohms).
• Replacement Direct Sight Gauge – A replacement direct sight gauge is available for mechanical swingarm units.